Route 100 Regional

Route 100 Regional treatment facility


The Route 100 Regional wastewater treatment plant (WWTP) is located east of Pennsylvania Route 100 along the north side of Fellowship Road.

Service Areas

The WWTP primarily serves newly constructed residential developments, as well as some existing residential, commercial and institutional properties found within the Villages of Eagle and Byers. These newly constructed residential developments are:

  • Byers Station
  • Chester Springs Crossing
  • Eagle Hunt
  • Enclave at Chester Springs
  • Ewing Tract – Upper Uwchlan Twp.
  • Ewing Tract – West Vincent Twp.
  • Preserve at Marsh Creek
  • Reserve at Chester Springs
  • Reserve at Eagle
  • Reserve at Waynebrook
  • Townes at Chester Springs
  • Villages at Chester Springs
  • Windsor Ridge

Following the WWTP Phase II expansion the sanitary sewers were extended into the existing residential developments of Eagle Manor, Heather Hill and Windsor Place.


Select the image at right to view a larger map of the Route 100 Regional treatment facility.


Phase I of the WWTP, consisting of a secondary treatment aerated lagoon with two cells divided by a baffle, a storage lagoon, and an effluent pump station with a control building, was put into operation in 2004. The Phase II expansion added two sequential batch reactors to the treatment processes, which was put in operation at the end of 2015. The combined Phase II treatment capacity of the WWTP is 600,000 gallons per day (gpd). The Phase III expansion will increase the treatment capacity to 800,000 gpd and is expected to start construction in 2022.

Disposal Methods

Disposal of effluent, treated water that leaves the WWTP facility, is handled through land application at 37 spray and drip irrigation areas located within and around the newly constructed residential developments.

Route 100 Regional Map - Small.jpg